Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5015a20819c1248…

MALICIOUS

PDF

65.4 KB Created: 2021-01-05 14:39:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: c433483cfaa0ce291cd311a979da5fd4 SHA-1: b74291bed7386c37063c97244b5bf8d5041e0ae1 SHA-256: d5015a20819c124800721490122215c6121cdcc204bee294d5d31fcb0775038b
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://trafffi.ru/123?utm_term=5th+grade+ecosystems+webquest PDF link annotation
    • https://cdn.sqhk.co/murefazomejo/gjwlihG/srs_light_mercedes_vito.pdfIn PDF document text
    • https://cdn.sqhk.co/zifalulog/jbygjic/56731682299.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418575/normal_5f9582416a78a.pdfIn PDF document text
    • https://kegazesawatodo.weebly.com/uploads/1/3/4/3/134378031/tewowoferagotutur.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373520/normal_5fcda0e4a379f.pdfIn PDF document text
    • https://cdn.sqhk.co/wifavizen/gd8Phbw/basketball_slam_dunk_games.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lusegokaves/zombie_catchers_apk_mod_free.pdfIn PDF document text
    • https://s3.amazonaws.com/woneketelak/bcbsil_claim_dispute_form.pdfIn PDF document text
    • https://s3.amazonaws.com/sinamozagemoger/analog_and_digital_communication_roden.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5A1 5812 bytes
SHA-256: ac61c68101eb7393cc53baa5876099dc3a42cb4d6838543cdda37b0332d385e8
font_01_sfnt_off0000d94e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD94E 9236 bytes
SHA-256: fdf4130bd0f4ae89e3d7500052a35890fd901f9622c8f46199d890ae5e7cf6b2

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